Welcome to the forum @Abu
We can assist you much easire if we know about your setup..
My domain is:
I ran this command: zmcontrol status
It produced this output:
Unable to start TLS: SSL connect attempt failed error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed when connecting to ldap master.
Cannot determine services - exiting
Are you running OpenLDAP? if so which version?
My web server is (include version): APACHE (which version?)
The operating system my web server runs on is (include version): Ubuntu 18.04
My hosting provider, if applicable, is: ???
I can login to a root shell on my machine (yes or no, or I don’t know): ???
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): zmcontrol Zimbra Server
The version of my client is (e.g. output of certbot --version or certbot-auto --version if you’re using Certbot):